Probe Hc-Sr501 Human Body Infrared Sensor Module Pyroelectric Infrared Sensor Blue Plate

Technical Specifications:

1. Operating Voltage: DC 5V to 20V
2. Static Power Consumption: Less than 60 µA
3. Output Level: High: 3.3V, Low: 0V
4. Delay Time: Adjustable (0.3 seconds to 18 seconds)
5. Blocking Time: 2.5 seconds
6. Trigger Mode: L (non-repeatable), H (repeatable), default is H
7. Detection Range: Less than a 120-degree cone, within 7 meters
8. Operating Temperature: -15°C to +70°C
9. PCB Dimensions: 32mm × 24mm; Screw hole spacing: 28mm; Screw hole diameter: 2mm
   Sensor Lens Dimensions (Diameter): 23mm (default)

Features:

1. Fully Automatic Sensing: Automatically outputs a high-level signal when a person enters the detection range. After the person leaves, the output delays and switches to a low-level signal.
2. Light Sensitivity Control (Optional): The module provides an optional light sensitivity control feature. When enabled, it can prevent activation during daytime or in strong light. The factory default does not include a photoresistor. If needed, a photoresistor must be purchased and installed separately.
3. Two Trigger Modes:
   • L (Non-repeatable): Once a high-level signal is output, it will automatically switch to low-level after the delay time ends.
   • H (Repeatable): While the high-level signal is active, if motion is detected within the delay period, the output will continue to hold the high-level signal. The delay will reset, starting from the latest detection.
4. Sensing Blocking Time (Default: 2.5 seconds): After each high-to-low-level transition, the module can set a blocking time during which it will not respond to any signals. This feature is useful for interval detection and helps suppress interference caused by load switching.
5. Wide Operating Voltage Range: Operates at DC 5V to 20V by default.
6. Low Power Consumption: Static current of 60 µA, ideal for battery-powered devices.
7. High-Level Signal Output: Easy integration with various circuits.